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The Modern Ease of 3D Printing
An anonymous reader writes "What will it mean when 3D fabricators become cheap and common? A NY Times article explores the ease of copying objects by scanning them with NextEngine scanner and sending them to 3d 'print shops'. The experiments were done with Legos because most of the things around his office were protected by copyright. What will happen to the economy for engineering when we can just download a pirated description of a machine and 'print' it out? 'The world is just beginning to grapple with the implications of this relatively low-cost duplicating method, often called rapid prototyping. Hearing aid companies, for instance, are producing some custom-fitted ear pieces from scanned molds of patients. Custom car companies produce new parts for classic cars or modified parts for hot rods. Consumer product makers create fully functional designs before committing themselves to big production runs.'"
"one trick for making models of dark shiny objects is to coat them with a cloud of white powder"
Great, so now when I'm in the tech room doing blow and the boss walks in I'll have a reasonable excuse: I'm prototyping my nose for a prosthetic. Never mind that not even a disfigured maxillofacial surgery patient would want my nose, but hey, the boss doesn't know that.
I hate printers.
When you think about it, modern society is moving more and more to the production of "intellectual property" (i.e. an idea as something you can own) rather than the production of physical goods. A modern individual has the capability of mastering their own music and movies, post-processing and distributing their own photographs in both digital and physical form, creating their own PCB-based electronics, designing their own Microprocessors, building their own vehicles (airplanes are a big one!), and many other tasks that used to require massive resources and tens-to-hundreds of emlpoyees.
Each time a task went digital, society was temporarily disrupted while the new technology was integrated. Then life went on, except that society was now capable of greater production than before. The implications of 3D printing technology are the same. The value of goods themselves will be reduced to the cost of initial development. Once that development has been achieved, unlimited copies will be possible. So the average consumer will see a reduction in costs, and the average producer will see an increase in profits.
"Piracy" will continue to be a problem, but it will be just like today. If producers offer a good value for the price, the majority of consumers won't bother with piracy. If producers are dumb enough to resist the change (*cough*I'm looking at you music industry*cough*), then they can expect that piracy will run rampant until they do offer such services.
Then life will go on, but just a bit better than before.
Javascript + Nintendo DSi = DSiCade
Maybe we will see a return to craftsmanship and individually crafted items. 3D printing is really the final stage in mass production - the same thing, reproduced over and over, rather than adapted to the wants or needs of a particular user. Imagine a world where you go to your local computer/car/furniture shop to discuss exactly what shape you'd like, what colour, materials, etc. Or, if you're happy with the same item as everybody else, it'll just keep getting cheaper.
This has been changing. Modern printers use much stronger materials based on resins similar to those used in Legos. So if you need a plastic part, you should be able to print one of reasonable strength. For example, I could see a huge market for toys on demand much in the way that books are slowly moving to print on demand.
It's fairly rare to be able to create a moveable part in a single mold. Usually, you create a variety of parts, then assemble them. When this starts to catch on with consumers, I imagine you'll first see products coming in many parts with "some assembly required". Later revisions of the technology might include robotic assemblers that construct devices in a manner similar to how PODs are now able to print and bind nearly any book. While the precise assembly options may not be comprehensive, model developers will know the limitations of the machines and attempt to modify their models so that they're more easily assembled by the robotics.
Also, there is an issue of scale that needs to be considered. There's nothing preventing a larger 3D printer from printing in concretes or metals. In fact, there was a story here a few weeks ago about a 3D printer that could construct a house in a few days. But why stop there? Ship hulls, car bodies, air foils, and many other items which are so large as to be difficult to mold could conceivably be printed instead. In many cases it may even be advantageous, as the part will be producable as a single object with no seams or rivets. This can potentially strengthen the object overall. Chemical agents can also be used to treat the object for better strength and endurance.
Obviously, the technology is just getting started. But it has been making great strides in the short time it's been available. Give it a decade or two more and the necessary material injection techniques and production methods will get most of the bugs worked out.
Javascript + Nintendo DSi = DSiCade
There are a wide variety of technologies in the marketplace and each have their advantages. Alas, I couldn't write a survey. The Z Corp models look flashy in the pictures because they're in full color, but they're probably not the strongest.
Some of the other systems from companies like Dimension or Stratasys use stronger plastics but can't produce multicolored items.
Some can produce fully working items right from the printer . They deposit two types of material: one soluable and one insoluable. After the thing is printed, you wash away the soluable stuff and the gaps open up. It's amazing. I've played with fully adjustable crescent wrenches that are built with almost the same precision as the ones from Sears. The plastic isn't as durable as metal, but you can certainly build things with the wrench. I'm told one of the cooler demonstration items is a bicycle chain that's fully assembled after the wash.
In some sense, these pre-assembled machines are better than traditional manufacturing techniques because you can build working items inside of sealed shells. There's no ship-in-a-bottle paradox because everything is built from the bottom up.
Good God, think of the paper jams. They're bad enough now, but imagine having to sit there picking pieces of a blender out of the printer ...
It is pitch black. You are likely to be eaten by a grue.